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This question can be reformulated into:
When will AMDs OpenCL compiler be able to compile Cycles?
The answer is blowing in the wind.
AMD is not interested in pursuing GPU rendering, it has nothing to do with Blender`s development. Buy a Geforce.
AMD is not interested in pursuing GPU rendering, it has nothing to do with Blender`s development. Buy a Geforce.
The sole purpose of a GPU is for rendering, what their not interested in is CUDA because it is proprietary. As @Zalamander said it is a question of “When will AMDs OpenCL compiler be able to compile Cycles?”
What I really want is support for the GPU’s “game-style rendering” capabilities, e.g. in the form of a special set of nodes for that purpose. I want to have the option to have the GPU do what it does in a game situation … the traditional intended use for the GPU chip to begin with. There are many cases where “most of all, I need it quickly.”
Get the context. Of course AMD is not and cant be interested in CUDA as it was created and is exclusively used by Nvidia but Blender developers literally cant integrate OpenCL support as the hardware and drivers are just not there and AMD has expressed that they at the moment do not care about OpenCL rendering in 3D applications and improvements in that regard are not coming anytime soon if ever. CUDA keeps it`s throne.
So if you want GPU rendering for Blender sell the Radeon and buy a Geforce because there is no ETA of OpenCL support in Blender due to AMD being uninterested in the matter.
As Zalamander said - “The answer is blowing in the wind.”